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Weather in Niagara Falls for September 2025

Your guide to Niagara Falls weather in September - trends and predictions

  • In general, the average temperature in Niagara Falls at the beginning of September is 26.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 21.1 °C by the end of September.

  • Niagara Falls sees moderate rainfall in September, averaging 6 rainy days.

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Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
0
Snow days
Average temperatures
24°/13°
Temperatures
Average wind speed
17 km/h
Avg max wind
Average humidity
70 %
Avg humidity

Niagara Falls in September average weather

Move between months or click on a day
August
October
Mon.Tue.Wed.Thu.Fri.Sat.Sun.
1
Mist
24°
2
Mist
22°
3
Cloudy
26°
4
Partly cloudy
29°
5
Partly cloudy
30°
6
Thundery outbreaks possible
30°
7
Light rain shower
22°
8
Fog
22°
9
Overcast
22°
10
Light rain shower
21°
11
Cloudy
24°
12
Mist
25°
13
Overcast
22°
14
Partly cloudy
24°
15
Mist
24°
16
Mist
24°
17
Mist
22°
18
Patchy rain possible
22°
19
Fog
22°
20
Mist
24°
21
Mist
27°
22
Partly cloudy
25°
23
Overcast
21°
24
Mist
21°
25
Cloudy
23°
26
Mist
22°
27
Overcast
20°
28
Patchy rain possible
19°
29
Patchy rain possible
22°
30
Fog
21°
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Temperatures trend during September in Niagara Falls

See the weather trend as well as the moving average line

September weather day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
1 Sept. Mist
Mist
 24° /14° 0.4 mm 5
2 Sept. Mist
Mist
 22° /14° 0.2 mm 6
3 Sept. Cloudy
Cloudy
 26° /15° 0 mm 6
4 Sept. Partly cloudy
Partly cloudy
 29° /17° 0 mm 7
5 Sept. Partly cloudy
Partly cloudy
 30° /17° 0 mm 8
6 Sept. Thundery outbreaks possible
Thundery outbreaks possible
 30° /19° 0.9 mm 7
7 Sept. Light rain shower
Light rain shower
 22° /15° 5.3 mm 5
8 Sept. Fog
Fog
 22° /12° 0.1 mm 5
9 Sept. Overcast
Overcast
 22° /14° 0.4 mm 5
10 Sept. Light rain shower
Light rain shower
 21° /15° 3 mm 5
11 Sept. Cloudy
Cloudy
 24° /15° 0 mm 6
12 Sept. Mist
Mist
 25° /16° 0 mm 6
13 Sept. Overcast
Overcast
 22° /14° 0 mm 6
14 Sept. Partly cloudy
Partly cloudy
 24° /13° 0 mm 7
15 Sept. Mist
Mist
 24° /13° 0 mm 6
16 Sept. Mist
Mist
 24° /13° 0 mm 6
17 Sept. Mist
Mist
 22° /13° 0 mm 5
18 Sept. Patchy rain possible
Patchy rain possible
 22° /13° 0.3 mm 5
19 Sept. Fog
Fog
 22° /12° 0 mm 5
20 Sept. Mist
Mist
 24° /12° 0 mm 6
21 Sept. Mist
Mist
 27° /14° 4.3 mm 6
22 Sept. Partly cloudy
Partly cloudy
 25° /13° 0 mm 6
23 Sept. Overcast
Overcast
 21° /14° 3.8 mm 5
24 Sept. Mist
Mist
 21° /12° 0.9 mm 5
25 Sept. Cloudy
Cloudy
 23° /15° 0 mm 5
26 Sept. Mist
Mist
 22° /14° 0 mm 5
27 Sept. Overcast
Overcast
 20° /12° 0 mm 5
28 Sept. Patchy rain possible
Patchy rain possible
 19° /12° 2.1 mm 5
29 Sept. Patchy rain possible
Patchy rain possible
 22° /16° 0 mm 5
30 Sept. Fog
Fog
 21° /14° 0 mm 5
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Important Notice
Our weather forecast for Niagara Falls in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Niagara Falls forecast closer to your planned date for the most up-to-date weather information.

Niagara Falls in September - FAQ

What are the expected maximum and minimum temperatures in Niagara Falls during September?
Enjoy moderate daytime temperatures of up to 24° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Niagara Falls during September?
Expect minimal rainfall in Niagara Falls during September, with a total of 16.1 mm over approximately 6 days. This minimal precipitation is unlikely to significantly impact plans.
What are the typical wind conditions in Niagara Falls during September?
The average wind speed in Niagara Falls during September is 17 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Niagara Falls

Explore the daily rainfall trends and prepare for Niagara Fallss September weather 💧

UV exposure in Niagara Falls during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

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Location coordinates Where is Niagara Falls?

Get accurate weather forecasts for Niagara Falls, located at latitude 43.1 and longitude -79.066. Stay updated with localized weather information tailored for Niagara Falls.

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